docs: def find_ruuvitags(bt_device=''):
          """
          Find all RuuviTags. Function will print the mac and the state of the sensors when found.
          Function will execute as long as it is stopped. Stop ecexution with Crtl+C.
  
          Returns:
              dict: MAC and state of found sensors
          """
  
          log.info('Finding RuuviTags. Stop with Ctrl+C.')
  
          datas = dict()
          for new_data in RuuviTagSensor._get_ruuvitag_datas(bt_device=bt_device):
              if new_data[0] in datas:
                  continue
              datas[new_data[0]] = new_data[1]
              log.info(new_data[0])
              log.info(new_data[1])
  
          return datas